Use counters instead of void* to iterate items. This simplifies some things and makes it easier to do over the wire. Add format description to NodeInfo and use this to add format descriptions to pinos devices. Small fixes to fix leaks and crashes.
Reuse object ids by using a mapper Simpify the uri struct a little.
Make it possible to add options for modules in pinos.conf.in. Only a few options for videotestsrc is supported at the moment.